ТС пропал ... остаётся гадать ...
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
</head>
<body> <div id="extra_prices2" class="container alert">
<div id="price_to_all" class="panel col-xs-12" aria-labelledby="price_to_all-tab">
<div class="form-group">
<div class="col-xs-4">
<input type="text" class="form-control impact_extra_value" value="">
</div>
<div class="col-xs-offset-1 col-xs-4">
<div class="input-group"> <span class="input-group-addon"><span class="initial">min</span></span>
<input type="text" class="form-control impact_initial" value="">
</div>
</div>
</div>
<div class="form-group">
<div class="col-xs-4">
<input type="text" class="form-control impact_extra_value" value="">
</div>
<div class="col-xs-offset-1 col-xs-4">
<div class="input-group"> <span class="input-group-addon"><span class="initial">min</span></span>
<input type="text" class="form-control impact_initial" value="">
</div>
</div>
</div>
</div>
<div id="price_to_client1" class="panel col-xs-12" aria-labelledby="price_to_all-tab">
<div class="form-group">
<div class="col-xs-4">
<input type="text" class="form-control impact_extra_value" value="">
</div>
<div class="col-xs-offset-1 col-xs-4">
<div class="input-group"> <span class="input-group-addon"><span class="initial">min</span></span>
<input type="text" class="form-control impact_initial" value="">
</div>
</div>
</div>
<div class="form-group">
<div class="col-xs-4">
<input type="text" class="form-control impact_extra_value" value="">
</div>
<div class="col-xs-offset-1 col-xs-4">
<div class="input-group"> <span class="input-group-addon"><span class="initial">min</span></span>
<input type="text" class="form-control impact_initial" value="">
</div>
</div>
</div>
</div>
<div id="price_to_client2" class="panel col-xs-12" aria-labelledby="price_to_all-tab">
<div class="form-group">
<div class="col-xs-4">
<input type="text" class="form-control impact_extra_value" value="">
</div>
<div class="col-xs-offset-1 col-xs-4">
<div class="input-group"> <span class="input-group-addon"><span class="initial">min</span></span>
<input type="text" class="form-control impact_initial" value="">
</div>
</div>
</div>
<div class="form-group">
<div class="col-xs-4">
<input type="text" class="form-control impact_extra_value" value="">
</div>
<div class="col-xs-offset-1 col-xs-4">
<div class="input-group"> <span class="input-group-addon"><span class="initial">min</span></span>
<input type="text" class="form-control impact_initial" value="">
</div>
</div>
</div>
</div>
</div>
<script>
var extra_values_group = '{"price_to_all":{"100":"1.546","200":"2.227"},"price_to_client1":{"100":"1.007","200":"0.124"},"price_to_client2":{"100":"1.007","200":"0.124"}}',
extra_values = JSON.parse(extra_values_group);
Object.keys(extra_values).forEach(function(a) {
var b = document.querySelectorAll("#" + a + " input"),
c = extra_values[a];
Object.keys(c).forEach(function(a, e) {
var d = 2 * e;
b[d].value = c[a];
b[++d].value = a
})
});
</script>
</body>
</html>